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Electrically neutral terbium's atomic number is 65. Therefore, it has 65 protons and 65 electrons. Terbium's only stable isotope is 159Tb, and thus it has 159 - 65 = 94 neutrons. That brings the total amount of subatomic particles in a terbium atom to 65 + 65 + 94 = 224.

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13y ago
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15y ago

Tritium is an isotope of Hydrogen that has 1 Proton and 2 Neutrons, for a total weight of 3.

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13y ago

65 protons and 94 neutrons don't mess it up u got it other not smart people

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13y ago

Terbium has 65 electrons per atom. Its electron structure is [Xe] 4f9 6s2. It may be hard to see from that, but terbium has 3 valence electrons.

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8y ago

For each isotope the number of neutrons is different. Number of neutrons in a Tb isotope = Mass number of an isotope – 65

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14y ago

there are 68 protons in erbium

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13y ago

64

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Q: How many protons and neutrons does terbium Tb have in its nucleus?
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